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This study aims to investigate the efficacy of three psychotherapeutic programs in group format: Acceptance and Commitment Therapy (ACT), Behavioral Activation (AC) and Transdiagnostic Cognitive Behavioral Therapy (TD-CBT), for the treatment of emotional disorders. Considering the data of the literature and the results of previous research, it is expected that this clinical investigation shows that transdiagnostic interventions that are tested (AC, ACT, TD-CBT) cause clinical changes in the post-treatment. However, it is expected that in post-treatment and in the short and medium-term follow-up, significant differences will be found between the transdiagnostic therapies examined in all outcome criteria variables; and that the greatest effectiveness and effectiveness be achieved in contextual therapies, in particular, in Behavioral Activation therapy. It is expected that the study design will allow obtaining firm evidence of the active therapeutic ingredients from the analysis of the differential efficacy of each of the psychotherapeutic programs. As a final consequence and based on the results and discussion on transdiagnostic conditions and transtherapeutic elements, it is expected to develop a unified treatment protocol (in group format -as an efficient work format and appropriate to the needs of public health services-) to be easily applied in the field of primary care. It could facilitate access to effective treatment of common mental disorders in public health services.
Full description
This study aims to investigate the efficacy of three psychotherapeutic programs in group format: Acceptance and Commitment Therapy (ACT), Behavioral Activation (AC) and Transdiagnostic Cognitive Behavioral Therapy (TD-CBT), for the treatment of emotional disorders. Considering the data of the literature and the results of previous research, it is expected that this clinical investigation shows that transdiagnostic interventions that are tested (AC, ACT, TD-CBT) cause clinical changes in the post-treatment. However, it is expected that in post-treatment and in the short and medium term follow-up, significant differences will be found between the transdiagnostic therapies examined in all outcome criteria variables; and that the greatest effectiveness and effectiveness be achieved in contextual therapies, in particular, in Behavioral Activation therapy. It is expected that the study design will allow obtaining firm evidence of the active therapeutic ingredients from the analysis of the differential efficacy of each of the psychotherapeutic programs. As a final consequence and based on the results and discussion on transdiagnostic conditions and transtherapeutic elements, it is expected to develop a unified treatment protocol (in group format -as an efficient work format and appropriate to the needs of public health services-) to be easily applied in the field of primary care. It could facilitate access to effective treatment of common mental disorders in public health services.
The present investigation has as general objectives:
Specific objectives are:
The sample will be composed by patients who obtain a score that indicates clinically significant symptoms according to the Hospital Anxiety and Depression Scale (HADS, Zigmond and Snaith, 1983). All participants have to sign the informed consent after being informed about the objectives and procedure of the study.
Participants that meet inclusion criteria will be randomly assigned to the experimental and control conditions. The programs will be developed in group format (maximum 8 patients / group) and will be implemented consecutively until reaching the required sample size.
Preselected patients will be interviewed by one of the researchers. The investigator explains the objectives and procedures and then participants sign the informed consent document and answer the Hospital Anxiety and Depression Scale (HADS, Zigmond and Snaith, 1983). When the result indicates clinically significant symptoms, participants will be randomly assigned (according to the table of numbers) to one of the different conditions of the investigation: three experimental (ACT; AC; TD-TCC) and a control (WL). Next, participants will be cited for an individual evaluation session in which the study variables will be explored through clinical interview and scales. After the individual evaluation session, experimental groups will receive 8 group psychotherapy sessions specific to each condition. Then, each patient have follow ups at 3, 6, 9 and 12 months after finishing the therapeutic group.
Wait List group will be evaluated after the same period of time of the experimental groups and with the same procedure. Subsequently, participants will be offered the possibility of receiving the intervention that has been shown to be most effective and / or suitable according to their peculiarities.
Therapy was administered by two licensed clinical psychologists. In order to ensure adhesion of clinical psychologists to therapeutic protocols, the intervention sessions were audio-recorded and weekly supervision sessions by the principal investigator of study were held. In addition, regular peer-to-peer coaching and supervision meetings were held to ensure protocol adherence.
Analysis of data:
The descriptive study of the sample and a study of the equivalence of control and experimental groups (with the relevant statistics according to the type of variable) will be carried out.
The investigators will study patients evolution and compare experimental and control groups in all variables using inferential statistics and evaluate the clinical change at experimental groups. For the statistical analysis a database and the statistical program IBM SPSS will be used.
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128 participants in 4 patient groups
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Data sourced from clinicaltrials.gov
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